Ventilator



Dec. 22, 1931. E. A. BEYL 1,837,401

VENTILATOR `'Filed Aug. l, 1950 2 Sheets-Sheet l Patented Dec. 22, 1931fBEYL, or MINNEAPOLIS, MINNESOTA vEN'iILATozR.

'Applicatiqn fue@ August 1, 1930; serial No. 472,263.

This invention has for its object to provi-de an extremely simple .andhighly -eiclent ventilator forbuildings, stacks, vents and the like,and-to this end, it consists of the novelf 5 devices and combinations ofdeviceshereinafter described and defined in the claims.

In the accompanying drawings, which illust-rate the invention, likecharacters indicate like parts throughout "the several views.

Referring v`to the drawings:

Fig. A1 is a front elevation of the improved ventilator and a fragmentofthe stack on which it is mounted;

Fig. 2 is a view partly Ainfplan and partly 'f l5 in horizontal sectiontaken substantially on the `line 2-2 of Fig. 1'; l. Y Fig.` 3 isaviewpartly in side elevation .and partly in vertical sectiontaken on the`line Sfiof Fig. 1; and

Fig. 4 is a lfragmentary view principally in section tali-en on the line-iof Fig. 3.V

The numeral 5 indicates a stack on which the improved ventilatorismounted and within said stacl'and rigidly secured thereto are twospiders 6 vertically spaced theone aboveA the other. A pivot' shaft 7axially aligned with the stack 5 is carried by the two spiders 6, hasscrew-threaded engagement with the 1 lower one and extends through abearing therefore in the upper one. This pivot shaft '7 extendsmaterially above the upper end of the stack 5. i

The improved ventilator is in the form of a sheet metal right-angleelbow having adiameter slightly greater than that of the stack 5 and itsopen lower end is telescoped slightly over the upper end of said stackout of contact therewith so as to shed water and prevent the same fromrunning down on the inside of said stack.

.i 1 upper end of the elbow 8` Said saddle 10 has on its outer endadepending segmentalv body 11 which fits against the inner sideof theVvertical section of the elbow 8 and is rigidly secured-thereto.The-saddle 10 is further secured to its tbody 11 by areinforc-` ing rib12 integral with said :body and rib. The elbow 8 Ais `held in a3 trueupright position on the shaft 7 by va Tspiderl', similar to the spiders6, rigidly secured to said .elbow below the body 11 and has aVturnableon saidshaft.

i A collar 14 on the shaft 7l above the spider 13 affords a stop forsaidspider to prevent the elbow 8 from being lifted .in respect to Vtheshaft 7 sufficiently to unseat the saddle 10 from said shaft.

Mounted onthe saddle 10 is anozzle 15 which projects into the elbowfSfrom'its back bearing that is toward the center of its open upper enohlThis nozzle 15 is of relatively large diameter .and slightly forwardlycontracted. Theisaddle 10 holds the nozzle 15 in a slightly rearwardlyinclinedposition so as to drain outside ofthe elbow 8 and with itsprojected axis at the center of the outer endof said elbow. The intakeend of the nozzle 15 projects outward of the elbow 8.

The delivery end of the nozzle 15 slight- Y ly forward of `thesaddle 10and its lowerpor* tion `is' depressedto form an open pocket 16 forcollecting condensation orfrain `that may be driven by the wind intosaid nozzle. "The pocket 16 engages the inner end of the saddle 10 as astopA during the assemblingof the nozzle 15 and saddle 10 and properlyposition said nozzle onv the saddle 10. To prevent rain from beingdriven completelythrough the nozzle 15 there is formed on the outer edgeof the pocket 16 an upstanding flange 17 Leading from the bottom of thepocket 16 to the exterior of the elbow 8v is a drain 18. VThis drain 18projects through the elbow 8 -outward thereof just above the spider 13and below the open front end of said elbow. Any rain or condensationcollecting in the pocket 16 will be carried by the drain 18 to theexterior of the ventilator.

Within the nozzle 15 and extending from the top tothe bottom thereof isa plurality. `of laterallyspaced collector plates 19.` VThese collectorplates 19 will collect any condensation within the nozzle 15 rearward ofthe pocket 16 or rain driven thereagainst and convey the same to thebottom of said nozzle where the saine escapes to the exterior of theventilator. The open delivery end of the elbow 8 is outwardly curved orexpanded, as indicated at 20, so that any condensation or watercollecting therein or moisture from the outside will be caused to dripoutside of the ventilator.

Projecting outward from the open delivery end of the elbow 8 is aweather vane 21 formed from a single sheet ofk metal set ver- Y ticallyedgewise at the horizontal center of said end of the elbow 8. This vane2l is bifurcated to receive the delivery end portion of the elbow 8 andthe prongs formed by this bifurcation at their inner edges are turnedlaterally to afford flanges 22 having the same contour as the underlyingportions of the elbow 8 and are riveted or otherwise rigidly securedthereto to hold the vane 21 in position on the ventilator. The vane 21is fui ther secured to the elbow 8 by a pair of brace rods 23 anchoredto the elbow 8 at diametrically opposite sides and attached to oppositesides of the vane 21.

The above described ventilator provides a simple and efficientmethod ofusing the wind velocity to assist the natural draft in a ventilating orsmoke flue tov increase the eiliciency thereof. The mounting of theventilator on the top of a stack for free swinging movement about theaxis of the pivot shaft and equipping the same with a weather vane toalways keep the elbow with its back to the wind and wind in blowing overand around the elbow will create a siphon action in the flue.Furthermore, the wind in passing through the nozzle 15 will furtherincrease this Siphon action in the flue.

The saddle l0 and its body 11 in addition to supporting the nozzle 15perform another important function in that they serve as acounter-weight to overcome the horizontal section of the elbow 8 and theweather vane 21 and hold the ventilator balanced about the axis of theshaft 7 so as to freely rotate without undue friction.

YVhat I claim is:

p l. The combination with a stack, of an elbow mounted on the stack toswing about the axis thereof, a weather vane on the elbow .at the outeropen end thereof, a saddle in the elbow, and a nozzle extending into theelbow from the `back thereof and mounted on the saddle, said saddleserving as a counterweight for holding the elbow balanced about the axisaround which-it swings.

2. The 'combinationwith-a stack having a pivot shaft, ofantelbow, a.weather vane on the elbow at'th'e open outer end thereof, a saddle` inthe elbow provided with a bearing seat which. restsl on theupper endofthe shaft and loosely supports the elbow thereon with freedom to swingabout the axis of the stack,

and a nozzle extending into the elbow from the back thereof and mountedon the saddle, said saddle serving as a counterweight for holding theelbow balanced about the axis of the shaft on which it is free to turn.

3. The combination with a stack, of an elbow mounted on the stack toswing about the axis thereof, a nozzle extending into the elbowv fromthe back thereof, and a plurality of laterally spaced upright collectorplates in the nozzle which extends substantially the full lengththereof.

1l. The combination with a stack, of an elbow motmted on the stack toswing about the axis thereof, a nozzle extending into the elbow from thebach thereof, and an upright collector plate in the nozzle, whichextends substantially the full length thereof.

5. The combination with a stack having a pivot shaft, of an elbow, asaddle directly and rigidly secured to the elbow, said saddle having abearing seat which rests on the upper end of the shaft and looselysupports the elbow therefrom with freedom to swing about the axis of thestack, and a nozzle mounted on the saddle and extending through vthe,elbow at the back thereof.

Y 6. r1`he combination with a stack, of an el" bow mounted on the stackto swing about the axis thereof, a nozzle extending into the elbow fromthe back thereof, said nozzle being rearwardly inclined to drain throughthe back of the elbow, said nozzle having nearlO0 its inner end acircumferentially extended moisture collecting pocket, and a downwardlyand forwardly inclined drain pipe leading from the drain pocket throughthe bot-Y torn of the nozzle. i

In testimony whereof I aiiix my signature.

EMIL A. BEYL.

